720920470 has 16 divisors (see below), whose sum is σ = 1312238880. Its totient is φ = 285127744.

The previous prime is 720920467. The next prime is 720920471. The reversal of 720920470 is 74029027.

It is a happy number.

It is a super-3 number, since 3×720920470³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720920471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404122 + ... + 405901.

It is an arithmetic number, because the mean of its divisors is an integer number (82014930).

Almost surely, 2^720920470 is an apocalyptic number.

720920470 is a deficient number, since it is larger than the sum of its proper divisors (591318410).

720920470 is a wasteful number, since it uses less digits than its factorization.

720920470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810119.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 720920470 is about 26849.9621973663. The cubic root of 720920470 is about 896.6627309812.

Adding to 720920470 its reverse (74029027), we get a palindrome (794949497).

The spelling of 720920470 in words is "seven hundred twenty million, nine hundred twenty thousand, four hundred seventy".